Sulky



' (No Model.

D. N. KRATZER.

SULKY.

No. 441,769. Patented Dec. 2, 1890.

s Q I 6 j o o) 2 5 I m r Z UNITED STATES DAVID N. KRATZER, OF MARION, IOIVA.

SULKY.

SPECIFICATION forming part of Letters Patent N0. 441,769, dated December 2, 1890 Application filed October 10, 1890. Serial No. 367,696. (No model.)

To aZZ whom it may concern.-

Be it known that I, DAVID N. KRATZER, a citizen of the United States, residing at Marion, in the county of Linn and State of Iowa, have invented certain new and useful Improvements in Sulkies; and ,I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to the mounting of a seat in that class of vehicles commonly known as sulkies, and my object in this invention is to so mount the seat and its connections as to render the action of the vehicle comfortable and noiseless and produce a simple, neat, and durable sulky.

The invention consists in the construction, combination, and arrangement of parts, as hereinafter fully set forth and claimed.

In the accompanying drawings, forming a part of this specification, Figure l is a side elevation of a sulky embodying my invention. Fig. 2 is a plan view of the same without the wheels. Fig. 3 is a transverse section of the springs at the point of crossing, showing a connected clip and roller; and Fig. 4, a side elevation of the same.

Similar letters of reference indicate corresponding parts.

Referring to the' drawings, A is the axle, mounted on wheels 13. To the axle is connected a pair of thills C 0, having the usual cross-bar E. These parts are all similar to those in common use.

The seat H is mounted on the rear end of a pair of diverging arms D D, which are commonly hinged to the cross-bar. My invention provides for a flexible connection with the cross-bar, but without the use of hinges or pivots. Extending from the cross-bar to the axle is a pair of springs F F. These are preferably, though not necessarily, made to diverge oppositely to the seat-arms, which cross them at an angle, as shown in Fig. 2. The springs F F have an upward curvature in the middle. They are bolted or otherwise securely attached to the cross-bar at the forward ends and are free at the rear ends to slide on the axle.

Under the seat-arms and parallel therewith is placed another pair of springs G G,curved oppositely to the springs F F and crossing them diagonally. The front ends of the Springs G G are securely attached to the crossbar or thills and the rear ends lie under the seat-arms, where they are free to play with the vibration of the springs. back of the cross-bar the forward ends of the seat-arms are secured to the springs by suit- A short distance able bolts or clips, thus givinga flexible conneotion of the arms with the running-gear at the front end, but avoiding the wear and rattle incident to loose connections. The construction is such as to secure the joint action of oppositely-set supporting-springs, and the 6 arrangements being such that the springs may be comparatively straight the action is correspondingly easy and pleasant. Evidently the springs F and G should not be rigidly connected, since there is a slight movement of the one upon the other. The simple crossing of the springs is shown in the principal figspring F and the spring G rests on the roller,

as will be seen.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a sulky, the combination, with running gear, substantially as described, of springs extending from the cross-bar to the axle, seat-arms flexibly connected with the cross-bar or thills, and interposed springs lying under and parallel with said seat-arms with their downward curve opposed to the upward curve of said first-mentioned springs.

2. In a sulky, the combination, with a running gear, substantially as described, of springs extending from the cross-bar to the axle and having a middle upward curvature, forwardly-divergin g seat-arms, and subjacent springs parallel wit-h said seat-arms and connected thereto a little back of the cross-bar,

and having a middle downward curvature bearing diagonally upon the upward curvature of the lower springs.

3. In a vehicle, substantially as described, 5 the combination of lower springs curved upwardly in the middle, upper springs, to which the seat-support is attached, curved downwardly in the middle, and an interposed antifrietion roller, substantially as described. to 4. In a vehicle, substantially as described,

the combination of the spring" F, clip I), having'lateral spring-bearings b b and roller a, and the spring Gr,substantially as and for the purpose set forth.

In testimony whereof I affix my signature in i5 presence of two witnesses.

DAVID N. KRATZER. \Vitnesses:

S. W. BRAINERD, L. A. ST. JOHN. 

